Onyx Slots Sister Site
Onyx Slots, a online casino hosted by the Grace Media Limited platform, operates alongside several other sister sites.
Siter Sites hosted by Grace Media Limited
Hotstreak Casino
Deposit £20 & Get 100 No Wager Free Spins
Is Licensed By: UKGC
terms and conditions
First deposit only. Min deposit £20. Min wager £20 on slots. Max 100 free spins. Max one claim. Spin credited within 7 days after deposit. Spins valid on Big Bass Splash. Spin Value 10p . Full T&Cs Apply 18+
PlayUK Casino
Welcome Bonus up to £100
Is Licensed By: UKGC
terms and conditions
First deposit only. 100% Bonus Match up to £100. Min deposit £10. Credited within 7 days. 40x wagering, £100 max conversion. Max one claim per player. 18+ T&C apply.
Vegas Wins Casino
Welcome Bonus up to £500
Is Licensed By: UKGC
terms and conditions
New players only, First 3 deposits only. Min deposit £10. Max total bonus £500 and 150 spins. 30x wagering (dep + bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. T&C’s appl
Cosmic Spins Casino
100% up to £100 Welcome Bonus
Is Licensed By: UKGC
terms and conditions
First deposit only. Min deposit £10. 100% Bonus Match on 1st deposit, max £100 bonus; 100 bonus spins on Starburst. 40x wagering(dep+bonus). 40x on spins, 4x conversion, bonus valid on selected slots. Full T&Cs apply. #AD, 18+ only, begambleaware.org
Breakdown of Onyx Slots
- Casino Name: Onyx Slots
- Launch Date: 2023
- Parent Company: Grace Media Limited
- Payment: Visa , Mastercard , Trustly , PayPal , Interac
- Software Providers: Netent , Playngo , Pragmatic , Microgaming , Redtiger , Irondog , Foxium
- Games: Slots , Live Casino , Slingo
Current Promotion
Pros
- Wagering Free Free Welcome Bonus
- Top For Slots
- Fully Licensed
Video Slots featured at Onyx Slots as of October 2025
Mega Fortune
Mega Fortune is an iconic progressive jackpot from Netent offering the glitz, glamour and charm of Monte Carlo. Its all about wealth essentially and is one of the most well known progressive slots online. One winner scooped over £17 Million in 2016
Mega Fortune Features:
- Free Spins
- Scatter Symbols
- Autoplay
- Multipliers
- Instant Wins
- Volatility: Medium
- Game Type: Progressive Jackpots
- Game Type: Jackpot Games
- Release Date: 2008-07-24
- RTP (Return to Players): 96.6%
- Reels: 5
- Min Bet: 0.2£
- Max Bet: 100£ (in UK 5£)
- Provider: NetEnt
- Paylines: 20
Conan Slot
Join Conan the Barbarian as he steps into battle against mystery symbols, wilds, and the chance to claim big wins. Do you have the strength to spin the reels and conquer the rewards?
Conan Slot Features:
- Free Spins
- Expanding Wild
- Wilds
- Multipliers
- Scatter Symbols
- Autoplay
- Theme: Modern
- Volatility: Medium
- Release Date: 2018-09-24
- RTP (Return to Players): 96.28%
- Reels: 6
- Min Bet: 0.20£
- Max Bet: 200£ (in UK 5£)
- Provider: NetEnt
- Paylines: 24
Gemix
similar to the popular Candy Crush Saga Game, Gemix is played on 7x7 structure with rainbow colours gems, hearts and stars adorning the reels.
Gemix Features:
- Expanding Rows
- Free Spins
- Mystery Symbols
- Respins
- Multipliers
- Wilds
- Sticky Symbols
- Volatility: High
- Game Type: Avalanche
- Game Type: Cascade Slots
- Game type: Megaway Slots
- Release Date: 2018-06-18
- RTP (Return to Players): 96.2%
- Reels: 7
- Min Bet: 0.1£
- Max Bet: 20£ (in UK 5£)
- Provider: Play'n GO
Temple of Tollan Slot
Temple of Tollan Slot is a unique game by Play’n GO that takes you deep into an Aztec-themed world, where wins are formed through a cluster pays mechanic. It stands out as one of the most original and high-quality slots available at new casino sites that feature Play’n GO titles.
Temple of Tollan Slot Features:
- Autoplay
- Mystery Symbols
- Expanding Symbols
- Multipliers
- Free Spins
- Instant Wins
- Volatility: High
- Theme: Modern
- Release Date: 2024-06-24
- RTP (Return to Players): 94.2%
- Reels: 7
- Min Bet: 0.1£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 1
Whispering Winds Slot
Enter the hidden world of ninjas in this Asian-inspired slot, where vibrant visuals and the chance for big payouts come together for an exciting gameplay experience.
Whispering Winds Slot Features:
- Free Spins
- Expanding Symbols
- Scatter Symbols
- Autoplay
- Instant Wins
- Multipliers
- Mystery Symbols
- Theme: Modern
- Volatility: Medium
- Release Date: 2024-07-11
- RTP (Return to Players): 96.23%
- Reels: 5
- Min Bet: 0.05£
- Max Bet: 100£ (in UK 5£)
- Provider: Play'n GO
- Paylines: 25